I cant seem to make a GUID partition using disk utilities, I've tried and tried and every time I go to make the section of the hard drive into a Mac drive and make it GUID the Options key is grayed out, cant access it. but if I go to choose a different set up I can choose it. but I don't want to right over my whole hard drive as I have Windows Vista running and is my primary OS. any Ideas as to what i need to do?

computer specs are:

Acer Aspire 5335,

Intel EVERYTHING, Possessor, graphics, sound.

2.13 Hz
2bg ram
250 GB hd

and i'm trying to use this process

Hackintosh Tutorial: Install a Mac Leopard OS X Retail DVD on a PC

which i believe will work great if i can only get the GUID Partition to work and making a Mac journaled drive.

Hi there,
I think you're asking for a little too much, LOL, IMHO. Pardon my joke.
First, you can only create a GUID drive when you delete the whole hard drive an initialize it, which means that you Vista or whatever there will be gone.
Secondly, Windows do not use a GUID disk scheme for installation and running, only mac retail DVD. Windows use the MBR disk scheme. That is why the option grayed out on you because it is in fact in MBR already.
So, if you only use one hard disk then take your pick, GUID or MBR, can not have both at the same times.
Regards,

My suggestion is to keep your disk at MBR so you can use your Vista and follow a guide to install Leopard into its partition, then you can dual boot both OS upon selection, but be prepared for the dual boot problem ahead of time with proper utility/solution so you're not stuck.
Regards,

Can he not create 2 or more partitions?

Originally Posted by aopolis

Can he not create 2 or more partitions?

Yes, but his question is not pertained to hard disk partition, I think.
It is about hard disk scheme. Real mac uses hard disk under GUID partition scheme, aka GPT, which is different than Windows which use MBR disk scheme. You can not switch between the two without losing the whole disk data, and that hard disk scheme can only be select/create at the very first stage of disk initialization (wipe out and create new disk).
FYI, MBR can only have 4 primary partition, and GPT can have as much as 128.
To be closer to real mac, particularly using retail DVD, hard drive usually partition using GPT, hence those guide instructed. This works well if you are using two disks with dual boot, since each OS will have its own disk format accordingly
Hope this help.
Regards,

Well I can do what ever I need to do, I just dont want to have to wipe and install because the computer I bought does not have the Vista Install discs with it. Would it be possible to make a disk image of my drive and load it? I mean i'm open to all options I'm not pinned to one thing here, I just need to get this thing going. and thank you for all the knowledge,I appreciate it. Other forums I've been on I would ask a question and 4 weeks down the road I would get an answer like, "I dunno? try a different method?"

think of anything?

Originally Posted by SynSoft

I cant seem to make a GUID partition using disk utilities, I've tried and tried and every time I go to make the section of the hard drive into a Mac drive and make it GUID the Options key is grayed out, cant access it. but if I go to choose a different set up I can choose it. but I don't want to right over my whole hard drive as I have Windows Vista running and is my primary OS. any Ideas as to what i need to do?

computer specs are:

Acer Aspire 5335,

Intel EVERYTHING, Possessor, graphics, sound.

2.13 Hz
2bg ram
250 GB hd

and i'm trying to use this process

Hackintosh Tutorial: Install a Mac Leopard OS X Retail DVD on a PC

which i believe will work great if i can only get the GUID Partition to work and making a Mac journaled drive.

You also can install mac osx on MBR disk with HFSJ partition (no need to wipe all, but need a new partition fat32 in vista).
But you may need to patch OSInstall.mpkg file in OSX dvd.

So I reformat the partition I want to Fat32 and patch OSInstall.mpkg? can you direct me to a guide for that?

Originally Posted by SynSoft

So I reformat the partition I want to Fat32 and patch OSInstall.mpkg? can you direct me to a guide for that?

You gonna have to erase the fat32 to macosx journaled extended with diskutility. And use Terminal to patch osinstall.mpkg .
Guide is herehttp://www.insanelymac.com/forum/index.php?showtopic=181287
or google: osinstall.mpkg mbr and there is also some retail install tutorial that provide download link for already patched of this file.
Goodluck always